Samuel child



- s. CHILD.-

.. v Refrigerator v V I 82- Patented Sept. 29,18 8;

" 'V/TNESSES: v I. Q I WWW bk.- Y

SAMUEL CHILD-,OF BALTIMORE, MARYLAN Letters Patent No. 82,597, datedSeptember 29,, 1868.

' IMPROVED REFRIGERATOR.

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'TO'ALL WHOM IT MAY oononnn; a

- invented a new and improved Refrigerator, which I call The MarylandRefrigerator Be it known that I, SAMUEL CHILD, of the 'cityand county ofBaltimore, and'State of Maryland, have and I do hereby declare that thefollowing is a full, clear, and exact'description of the constructionand operation of the same, rcference being had to the annexed drawings,making a part of this specification, inwhich 1 v Figure 1 is a verticalsection, through the liney y of fig. 2.

Figure .3 is a cross-section, through the line a: a: offig. 1. i v vThis improved refrigeratonisso constructed that the meltings of the iceare retained a position where theycan be used to absorb the gases,vapors, or odorous matters that are given oil from the viands, while theice-cold water, as it becomes charged with these offensive matters, ispassed out of the refrigerator without allowing entrance to tbc'cxternalair, and without permitting any air-currentsto; .pass in contact withthe ice either over or under it.

A good refrigerator mustbe capable of mai'n'tiiini'ng'finitsinfteriorarempcratnrelow-enough-t ozpneseweh the articles placedtherein. It must accomplish this economically, with the 'least possibleconsumption ofice; and, most important of all, it must always exhibit aperfectly dry and pure atmosphere. If, with these requisites, it isself-purifying, so that no accumulation of disagreeable odors canpossibly occur-,it is evidently exactly what is wanted. Theseindispensable conditions are believed to be more perfectly accomplishedby this Maryland refrigerator" than by any other invention fcr thepurpose yet known.

The introduction or passage of external air through a refrigeratorcreates moisture and dampness, and robs it of its colder atmosphere, andcauses an unnecessary waste of ice. Currents'produced withina refriger-'ator, by passing the warmer atmosphere over and upon the ice, aregreatly objectionable, causing a great consumption of ice, and alwaysleaving an extremely had odor in the ice-chamber, so much so that waterplaced therein cannot be drank, as these who have bought suchrefrigerators have no .doubt' discovered. For the purification of ai-refrigerator, disinfectants cannot be used, but an absorbentcan. Thiswe have self-supplied, and renewed and changed, as used in the Marylandrefrigerator. i i

The principle of this refrigerator may be described asfollows: The airleaves the. ice-chamber at a temperature as near as practicable to 32,descends by its own gravity to the lower partsof the preserving-chamber,and the warmer atmosphere rises towards the upprpar'ts of therefrigerator, and in its passage comes in contact with the cold Waterformed by the melting of .the ice, and contained in an open vessel. Bysuch contact with I i-,his cold water the moisture of the air iscondensed, it becomes dried, and at the same time the odors and vaporspresent are absorbed and passed out of the refrigerator-by means of thewastewater. This process is continued so long as the refrigeratorcontains any ice. Hence, by retaining the meltings of the ice in avessel of a particular construction, which is self-discharging, andplaced in a, proper position, wli are enabled to purify a refrigeratormore perfectly and with a less quantity of ice'thjan hascver before beenaccomplished.

It must be borne in mind that, since .cold water is an absorbent ofgases and vapors to a definite, an d therefore it limited, extent, thispower is useless unless, as n the invention which I claim, a provisionis made for discharging the water already saturated with ofi'ensivematters, and for maintaining a constant new supply of pure cold water. iA

-In the drawings, A. represents the ice-chamber, having an inclinedbottom, a, which discharges the water formed from melting the ice upon agutter, I having a dischargc -orifice, b, whence it flows intoa-ivatercondensing pan, C, from which. after rising to a certain height,it escapes through a waste-pipe, D. B is a partition, which separatesthe ice-chamber from the chamber above the water in the pan C. E E arethe walls, F the cover, and G the bottom of the refrigerator. I

The ice is placed in the chamber A, and the food or other article to becooled is placed on suitable shelves -6! in vessels, in thepreserving-chamber II. As the air in the ice-chamber is cooled, itdescends to tho preservingchamber, and keeps the food in a suitablecondition for use. The-water formed by the'melting of the iceaccuice-chamber A, and gutter B as herein described, for the purposespecified.

mulates in the pan 0, where it absorbs the gases,'odors, &e., that risefrom the food, and flows off through ori-fi'ce of pipe D, carrying withit the oflensive matters referred to.

It will be observed that the pan 0 occupies a very small portion of therefrigerator, so that the gases and v odors passing upward from-theprovision-chamber are uuohstruoted. They therefore cannot becondensedagainst the bottom of the pan C,but are directed at once to the upperportion of the refrigerator and absorbed by the water in the pan.

The whole operation of ;the refrigerator is therefore exactly that whichI have above described, combining all the essential requisites (if arefrigerator especially adapted to the preservation of food and otherarticles whigh emit gases or disagreeable odors. i v

' Having thus described lily invention, what I claimas new, anddesire tosecure by Letters Patent, is-

The arrangement of pan 0, having the waste-pipe D, with relation to theprovision-chamber H, the

SAMUEL CHILD.

Witnesses:

J. M. CAMERON,

J T. TAYLOR.

